Timing device for washing machines



July 29,1924. 1502915 F. NEUWERK TIMING navxcn yon vmsnme MACHINES"Filed'bec. 27. 1920 770 ENE) Patented July 29 1924.

and useful Imp UNITED STATES 1,502,915 PATENT o Frce.

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Application filed December 27, 1920. Serial No. 433.268.

To all whom it may concern:

Be itknown that I, PETER NEUWERK, a citizen of the United. Statesresiding at Moline, in the county-of Roc 'Island and State of Illinois,have'invented certain new rovements in Timing Devices for WashlngMachines, of which the following is a specification. I

My invention relates to timing devices for washing machines, of thatclass by the use of which the movement of the operating devices of themachine'is automatically inter-- rupted after having been in movementfor. a. desired length of 1311116. The present inven--' tion relates tomeans: for. imparting the movement of the washing machine devices 'to arotatable wheel, from the movement of desired,

4 One of the which a switch can be closedor opened, as to shut off thepower which is being supplied to the machine. The means for operatingthe switch'consists of a frame assoeiated with such wheel so as to havemovement therewith, in adjusted positions with relation thereto.purposes of the. invention is to provide a connecting means frame andthe wheel of a. positi ve'character,

- typ and which can be easily manipulated. 7

Another purpose of the invention is to provide means for operating therota? wheel at a greatly reduced rate of spee so as to extend the periodof time for which the machine may be operated before its movement'isinterrupted, and thereby increase the scope thereof.

The particular construction, arrangement, and operation of the parts ofmy invention more fully apprehended from the reference being had tothe'accompanying drawings, showing the preferred embodiment of thedevice, as applied to. a washing machine of conventional in'whichdrawings Fig. 1 is a'fragmentary view of a washin% machine, equippedwith myinvention. ig. 2 is a ver-tlcal section, showing the invention inside view.

big. 3 is a detail, in section, of theframe adjustment devices. v

ig. 4 is a' fragmentary vview of theplate with the dial 30.there on.-Similar parts are indicated by corresponding reference charactersthroughout'the several figures.

ing one "pivoted on .movement and capable of being held' between said .bshaft-may be '1 represents a portion of the frame of a washing machine,and. 2 the tub thereof.

In the .lower part .of the frame is a crosspiece 3,-on which isjournaled a shaft 4, to

which power may be applied in any usual manner. Fixed on the shaft '4 isa wheel -5, above which-is pivoted a ralcloframe 6, to

which movement is imparted from said .7

I the tub, and which shaft is adapted to carry a cylinder or otheroperative devices of the tub.

1 Above the rack 6 aratchet-wheel is secured on a shaft 11, rotatablymounted'in bearings on the tub 2. and"a plate 12, formside of themachine. Movement is imparted from the rack 6 to theratchetwheel by'means of apin 13 in the end of an arm 14, the other endof which arm isthe rack of the arm 14 gives an intermittent rotary movement to thewheel ,10, each 6. The reciprocating movement of said arm advancingthewheel to the extent of one of the teeth thereon. Engagement of the ismade positive by interposed between theframe 1 and arm 14. Above theshaft 11 is wheel 17 so as to rotate freely thereon. Ro-

tation is imparted. to ratchetheel .10 by means of a pin '18 in saidratchet-wheel, which successively engages the teeth of the wheel 17, andmoves fixed to said shaft is a frame 19, provided with a pin 20, adaptedfor alternative engagement with a series of openings 21 m "the wheel 17,equi-distant from the center thereof. The frame 19 is centrally providedwith an arch 22, between which and the is interposed a coiled .spring23, the I tension of. which operates to hold the frame plate 12 19normally in engagement with the wheel 17. At. its outer end the shaft 16is provided with a handle 24 means of which said outwardly sufficientlypin 13 with said teeth means of a-spring 15.

rotatably mounted a shaft 16, upon which issupported-a toothed 4 thewheel 17 from the to disengage the pin20, whereupon the shaftand frame'19 can be'turned to any desired :osition, with relation to the' wheel17 and ocked in such positlon .by engaging the 7 spring 25, ofcomparatively less expansive power than the spring 23, which springprevents movement of'the wheel 17 outwardly upon the outward movement ofthe frame 19. At one of its ends the frame 19 is fitted witha trip 26,adapted for engagement with the movable arm 27 of an electrical switch28,, which has suitable connections, not shown herein, with an.electrical system by means of which the washing machine'devices aredriven or controlled. In the rotation ofthe wheel 17the trip '26 isbroughtinto contact with the switch arm, to suitably actuate the same.The length of timewhich will elapse before the switch is actuated willdepend upon the position of the trip with relation to the switch whenthe machine is started, and this is governed to a large extent by theproportionate construction and arrangement of the wheels 10 and 17.

Assuming that-the wheel 10 is provided with twelve teeth, and that thearm 14: has twelve strokes to the minute, the wheel 10 will be rotatedonce in each minute of time. It the wheel 1'? possesses thirty teeth, itwill describe a complete revolution'in thirty min-. utes, and by settingthe frame 19 at a proper point that amount of time will elapse beforethe movement or the machine would be in;- terrupted', it it wereattempted to apply the movement of the 'rackti directly to the wheel 17,such wheel would have to be fitted with three hundred and sixty teeth,to secure'the' same pcr'iod ot time. This might be inipractical.'ln'some machines the movement of the racks tor other movable part ofthe machine, might be more rapid than above stated, in which casesgreater reduction. of speed would have to be secured through the wheels'ldefnd l7.

The holes 21 are equal in number to the teeth on wheel It is obviousthat changes cenbe made in the form and opera tion thereof. Y n

@n the outside of the plate 12 the shaft 16 is provided with pointer 29,to be used in connection with a diai 30 on the face of such plate, saiddial having characters arranged thereon to show the l ngth of time thatthe machine will operate vbetbrebeing stopped by the trip mechanisn'rg"A sup ort31is also provided for engagement by t e pointer, to hold theframe 19 in disengaged position. v What I claim as my" invention, anddesire to secure by Letters Patent,- is:

1.:In a'device ofthe class described, in combination with the frame ofthe machine and operating mechanism thereof, a shaft mounted therein soas to be rotatable and also capable of a limited longitudinal movement;a toothed wheel loosely mounted on said shaft; 21. frame fixed to saidshaft and provided with -a'switch-throwing member; means for compellinga normal engagement of said last-named frame with said toothed wheel;yieldable means for holding said lastnamed .frame and toothed wheel inspacedapart relations when disengaged; a movable member in proximity tosaid toothed wheel, adapted to receive int'ern-iittent progressive-movements, and provided-with means for engagement with said toothedwheel to impart a partial rotation thereto for each cycle of operationof said member; and means for imparting the movement of said operating amechanism to said movable member, to give intermittent action thereto.

2. In a device of the class described, in combination with the frame andoperating mechanism thereof, a toothed wheel rotatably mounted invsainected with. said wheel so as to be adjustable with relation thereto andprovided with a switch-throwing device; means for adjustment of saidlast-named frame with relation to said wheel ;ineansfor holding saidswitchthrowing frame normally in engagement with said wheel; means forholding said last-mentioned frame out of engagement with said vwheel;means for indicating the position of said lastn1entioned frame withrelation to said wheel; means for holding said wheel in spaced-apartrelation with said switch frame when it is out or"- engagementtherewitiuand a ratchet-Wheel in operative connection with saidoperating mechanism, and provided with means for engagement with theteeth of said first-mentioned wheel to impart a step-by-step movementthereto.

7 In testimony whereof I afiix my signature.

' PETER NEUWERK.

frame; a frame con-

